I'm sure when you have gone out running or in your car, you have seen cyclists on the road with no lights whatsoever. I find this extremely frustrating, so I'm here to tell you: get a bicycle headlight today.
Some bikers tend to just put on reflective clothing and lights on their body if they will be biking at night, but still having a headlight is extremely important. They come separately from the bike, so a lot of people don't even know to buy them when they first start out. Also, it's illegal to ride your bike on a public street without lights at night.
“Some bikers tend to just put on reflective clothing”
One of the most painful times in my life was when I went for a 60 mile ride on my bike. At first it was all fun and games until my butt was in severe pain. I had saddle soreness. This was the worst pain ever.
I'm not much of a cyclist. I've only been on a handful of rides in my thirty something odd years of living. However I have an immense amount of respect for riders all around the world. It's a tough sport to endure.